公开(公告)号：US20090200891A1

公开(公告)日：2009-08-13

申请号：US12425479

申请日：2009-04-17

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlock ,  Robert G. Kusmierski ,  David J. Smith

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlock ,  Robert G. Kusmierski ,  David J. Smith

IPC分类号： H02K3/34

CPC分类号： H02K15/0435 ,  H02K1/148 ,  H02K1/18 ,  H02K3/325 ,  H02K3/522 ,  H02K15/10 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/53143

摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.

摘要翻译： 电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。 引线从每个励磁线圈的端部引出。 励磁线圈用绝缘套管或绝缘槽衬垫绝缘。 励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。 在与励磁线圈组装之前形成定子铁芯片。 在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

公开(公告)号：US07528520B2

公开(公告)日：2009-05-05

申请号：US11542826

申请日：2006-10-04

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

IPC分类号： H02K1/18

CPC分类号： H02K15/0435 ,  H02K1/148 ,  H02K1/18 ,  H02K3/325 ,  H02K3/522 ,  H02K15/10 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/53143

摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.

摘要翻译： 电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。 引线从每个励磁线圈的端部引出。 励磁线圈用绝缘套管或绝缘槽衬垫绝缘。 励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。 在与励磁线圈组装之前形成定子铁芯片。 在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

公开(公告)号：US07233091B2

公开(公告)日：2007-06-19

申请号：US10934104

申请日：2004-09-03

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

IPC分类号： H02K1/18 ,  H02K1/22

CPC分类号： H02K15/0435 ,  H02K1/148 ,  H02K1/18 ,  H02K3/325 ,  H02K3/522 ,  H02K15/10 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/53143

摘要： An electric motor has a field assembly, such as a stator, has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed. The pole pieces and return path pieces are formed with mating features that are mated to hold the pole pieces and return path pieces together.

摘要翻译： 电动机具有诸如定子的现场组件，具有卷绕成网状的励磁线圈。 引线从每个励磁线圈的端部引出。 励磁线圈绝缘。 励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。 在与励磁线圈组装之前形成定子铁芯片。 在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。 极片和返回路径片形成有匹配特征，其配合以将极片和返回路径片保持在一起。

公开(公告)号：US07146706B2

公开(公告)日：2006-12-12

申请号：US10934333

申请日：2004-09-03

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Earl M. Ortt ,  Michael J. Agnes ,  Michael A. Zemlok ,  Robert G. Kusmierski ,  David J. Smith

IPC分类号： H02K15/00 ,  H02K15/14 ,  H02K15/16

CPC分类号： H02K15/0435 ,  H02K1/148 ,  H02K1/18 ,  H02K3/325 ,  H02K3/522 ,  H02K15/10 ,  H02K15/12 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/53143

摘要： An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.

摘要翻译： 电动机具有诸如定子的现场组件，用于电动机具有卷绕成网状的励磁线圈。 引线从每个励磁线圈的端部引出。 励磁线圈用绝缘套管或绝缘槽衬垫绝缘。 励磁线圈与诸如极片和返回路径片的定子铁芯片组装到定子中。 在与励磁线圈组装之前形成定子铁芯片。 在本发明的一个方面中，磁极片和返回路径片被分开地形成，然后与已经分开形成的励磁线圈组装在一起。

公开(公告)号：US06946758B2

公开(公告)日：2005-09-20

申请号：US10616573

申请日：2003-07-10

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Joshua F. West ,  Michael R. Sell ,  Richard T. Walter ,  Earl M. Ortt ,  John C. Stone

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Joshua F. West ,  Michael R. Sell ,  Richard T. Walter ,  Earl M. Ortt ,  John C. Stone

IPC分类号： H01R39/14 ,  H01R39/32 ,  H01R39/52 ,  H02K1/04 ,  H02K1/30 ,  H02K1/32 ,  H02K3/12 ,  H02K3/30 ,  H02K3/34 ,  H02K3/46 ,  H02K3/48 ,  H02K3/487 ,  H02K3/50 ,  H02K3/51 ,  H02K5/08 ,  H02K7/04 ,  H02K9/06 ,  H02K9/20 ,  H02K9/22 ,  H02K13/00 ,  H02K13/04 ,  H02K15/12 ,  H02K15/16 ,  H02K23/00

CPC分类号： H02K3/50 ,  H01R39/14 ,  H01R39/32 ,  H02K1/30 ,  H02K1/32 ,  H02K3/12 ,  H02K3/30 ,  H02K3/345 ,  H02K3/46 ,  H02K3/48 ,  H02K3/487 ,  H02K3/51 ,  H02K5/08 ,  H02K7/04 ,  H02K9/06 ,  H02K9/20 ,  H02K9/22 ,  H02K13/006 ,  H02K13/04 ,  H02K15/12 ,  H02K15/165 ,  H02K23/00 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49075 ,  Y10T29/49078

摘要： Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with thermally conductive plastic. Pre-formed features having a thermal conductivity higher than the thermally conductive plastic are insert molded when the plastic is molded. The pre-formed features may include a finned end cap and a fan. Alternatively, end domes of the plastic over end coils of the wound magnet wires have a metallic layer on them, such as by being metallized. The end domes can be formed with features which are also metallized. The thermally conductive plastic can have a phase change additive in it. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires.

摘要翻译： 缠绕在电动机的层压叠层中的槽中的磁铁丝全部或部分地用导热塑料封装。 当塑料模制时，具有高于导热塑料的导热率的预成形特征被嵌入模制。 预先形成的特征可以包括翅片端盖和风扇。 或者，缠绕电磁线的塑料端部线圈的端部圆顶上具有金属层，例如通过金属化。 端部圆顶可以形成为也被金属化的特征。 导热塑料在其中可以具有相变添加剂。 电磁线可以具有一层热活化的粘合剂，当塑料被模制时被激活。 层叠堆叠中的槽可以包括由导热塑料形成的槽衬。 当形成导热塑料以封装电磁线时，可以形成风扇。

公开(公告)号：US07096566B2

公开(公告)日：2006-08-29

申请号：US10616871

申请日：2003-07-10

申请人： Hung T. Du ,  Brandon L. Verbrugge ,  Joshua F. West ,  Michael R. Sell ,  Richard T. Walter ,  David J. Smith ,  Earl M. Ortt ,  John C. Stone ,  Howard T. White

发明人： Hung T. Du ,  Brandon L. Verbrugge ,  Joshua F. West ,  Michael R. Sell ,  Richard T. Walter ,  David J. Smith ,  Earl M. Ortt ,  John C. Stone ,  Howard T. White

IPC分类号： H02K15/00 ,  H02K15/14 ,  H02K15/16

CPC分类号： H02K1/30 ,  H01R43/10 ,  H02K1/32 ,  H02K3/12 ,  H02K3/30 ,  H02K3/345 ,  H02K3/46 ,  H02K3/48 ,  H02K3/487 ,  H02K3/50 ,  H02K3/51 ,  H02K7/04 ,  H02K9/06 ,  H02K9/20 ,  H02K9/22 ,  H02K13/006 ,  H02K13/04 ,  H02K15/0056 ,  H02K15/02 ,  H02K15/12 ,  H02K15/165 ,  Y10T29/49 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/49071 ,  Y10T29/49073 ,  Y10T29/53148

摘要： Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with plastic. The plastic may be thermally conductive and have features molded therein that enhance heat transfer. The plastic may stiffen the armature and increase its critical speed. Characteristics of the plastic, its geometry and its distribution may be varied to adjust spinning inertia and resonant frequency of the armature. The magnet wires may be compressed into the slots, by application of iso-static pressure or by the pressure of the plastic being molded around them. Larger magnet wire can then be used which increases the power of the electric motor using the armature having the larger magnet wire. A two or three plate mold may be used to mold the plastic around the armature. Balancing features can be molded in place. The plastic can have a base polymer that is a blend of two or more polymers and various thermally conductive fillings.

摘要翻译： 缠绕在电动机的叠片中的槽中的磁铁丝全部或部分地用塑料封装。 塑料可以是导热的并且具有模制在其中的特征，其增强热传递。 塑料可能使电枢变硬，并增加其临界转速。 可以改变塑料的特性，其几何形状及其分布，以调整电枢的旋转惯性和谐振频率。 电磁线可以通过施加等静压力或塑料周围的塑料的压力被压缩到槽中。 然后可以使用较大的电磁线，其使用具有较大磁体线的电枢增加电动机的功率。 可以使用两个或三个平板模具来模制电枢周围的塑料。 平衡功能可以模制到位。 塑料可以具有基础聚合物，其是两种或更多种聚合物和各种导热填料的共混物。

公开(公告)号：US08823234B2

公开(公告)日：2014-09-02

申请号：US12443191

申请日：2007-10-12

申请人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

发明人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

IPC分类号： H02K21/26 ,  H02K23/04 ,  H02K1/17 ,  H02K15/03 ,  H02K1/27

CPC分类号： H02K1/17 ,  H02K1/2786 ,  H02K15/03 ,  H02K23/04 ,  Y10T29/49009

摘要： An electric motor has a rotor and a stator. The rotor or the stator has arced permanent magnets that have essentially the same inner radius (IR) and outer radius (OR). In an aspect, the stator has a stator housing having a plurality of poles. Each pole includes a plurality of flat magnets affixed to an inner surface of the stator housing. In an aspect, flats on the outside of the stator housing key the stator assembly in a power tool housing. In an aspect, flat magnets are pre-magnetized, pre-assembled with alternating magnetic polarities, inserted into a stator housing, and remagnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets and unmagnetized magnets are pre-assembled with unmagnetized magnets between magnetized magnets, the pre-assembled magnets inserted into a stator housing, and the unmagnetized magnets magnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets are inserted between anchors inwardly extending from an inner surface of a stator housing with the anchors retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, pre-magnetized magnets are inserted in recesses in an inner surface of a stator housing with the recesses retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, each pole has at least three magnets, at least one of the magnets being thinner than the other magnets. In an aspect, the outer most magnets are made of magnetic material that is more resistant to demagnetization than at least one of the other magnets. In an aspect, the magnets of each pole are unevenly spaced over the pole In an aspect, a power tool includes such an electric motor.

公开(公告)号：US20110298313A1

公开(公告)日：2011-12-08

申请号：US13112136

申请日：2011-05-20

申请人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

发明人： Stephen Osborne ,  Colin Crosby ,  Sankarshan Murthy ,  Hung T. Du ,  Earl M. Ortt

IPC分类号： H02K7/14

CPC分类号： H02K1/185 ,  H02K1/17 ,  H02K23/04

摘要： A permanent magnet electric motor has a stator and a rotor. The stator has a stator housing with at least a North pole and a South pole, each pole including permanent magnets affixed to an inner surface of the stator housing, where at least two of the magnets within a pole have dissimilar characteristics, e.g., different widths or different grades of demagnetization resistance.

摘要翻译： 永磁电动机具有定子和转子。 定子具有至少具有北极和南极的定子壳体，每个极包括固定在定子壳体的内表面上的永久磁体，其中极内的至少两个磁体具有不同的特性，例如不同的宽度 或不同等级的消磁阻力。

公开(公告)号：US20100033036A1

公开(公告)日：2010-02-11

申请号：US12443191

申请日：2007-10-12

申请人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

发明人： Earl M. Ortt ,  Hung T. Du ,  Sankarshan Murthy

IPC分类号： H02K7/14 ,  H02K15/00 ,  H02K1/27 ,  H02K1/17

CPC分类号： H02K1/17 ,  H02K1/2786 ,  H02K15/03 ,  H02K23/04 ,  Y10T29/49009

摘要： An electric motor has a rotor and a stator. The rotor or the stator has arced permanent magnets that have essentially the same inner radius (IR) and outer radius (OR). In an aspect, the stator has a stator housing having a plurality of poles. Each pole includes a plurality of flat magnets affixed to an inner surface of the stator housing. In an aspect, flats on the outside of the stator housing key the stator assembly in a power tool housing. In an aspect, flat magnets are pre-magnetized, pre-assembled with alternating magnetic polarities, inserted into a stator housing, and remagnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets and unmagnetized magnets are pre-assembled with unmagnetized magnets between magnetized magnets, the pre-assembled magnets inserted into a stator housing, and the unmagnetized magnets magnetized to a final, desired magnetic polarity configuration. In an aspect, pre-magnetized magnets are inserted between anchors inwardly extending from an inner surface of a stator housing with the anchors retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, pre-magnetized magnets are inserted in recesses in an inner surface of a stator housing with the recesses retaining each magnet placed in the stator housing between anchors from being angularly displaced by subsequently inserted magnets. In an aspect, each pole has at least three magnets, at least one of the magnets being thinner than the other magnets. In an aspect, the outer most magnets are made of magnetic material that is more resistant to demagnetization than at least one of the other magnets. In an aspect, the magnets of each pole are unevenly spaced over the pole In an aspect, a power tool includes such an electric motor.

摘要翻译： 电动机具有转子和定子。 转子或定子具有具有基本相同的内半径（IR）和外半径（OR）的弧形永磁体。 在一方面，定子具有具有多个极的定子壳体。 每个极包括固定在定子壳体的内表面上的多个扁平磁体。 在一个方面，定子外壳外侧的平面将定子组件锁定在动力工具壳体中。 在一方面，扁平磁体被预先磁化，预先组装成具有交替的磁极性，插入定子壳体中，并且被重新磁化成最终期望的磁极性配置。 在一方面，预磁化磁体和非磁化磁体在磁化磁体之间预先组装有非磁化磁体，预组装的磁体插入定子壳体中，而磁化的磁体磁化到最终期望的磁极性结构。 在一个方面，预磁化的磁体被插入到从定子壳体的内表面向内延伸的锚固件之间，锚固件将放置在定子壳体中的每个磁体保持在锚固件之间，以便由随后插入的磁体进行角度位移。 在一方面，预磁化的磁体被插入定子壳体的内表面中的凹槽中，其中保持放置在定子壳体中的每个磁体的凹槽不会被随后插入的磁体角位移。 在一个方面，每个极具有至少三个磁体，至少一个磁体比其它磁体薄。 在一个方面，最外面的磁体由比其它磁体中的至少一个更能抵抗退磁的磁性材料制成。 在一方面，每个极的磁体在极点上不均匀地间隔开。在一个方面，电动工具包括这种电动机。

公开(公告)号：US06781267B2

公开(公告)日：2004-08-24

申请号：US10170996

申请日：2002-06-12

申请人： Earl M. Ortt ,  Brandon Verbrugge ,  Hung T. Du ,  Morris R. Davies

发明人： Earl M. Ortt ,  Brandon Verbrugge ,  Hung T. Du ,  Morris R. Davies

IPC分类号： H02K516

CPC分类号： H02K1/28 ,  H02K1/17 ,  H02K5/15 ,  H02K5/1732 ,  H02K9/06 ,  H02K15/12 ,  H02K23/04

摘要： A power tool has a motor with end caps secured by cold forming to the motor. The end caps include bearings retained in the end cap by deformation of the end cap. The motor includes an armature shaft which is staked to retain laminates as well as a retainer on the shaft. Also, a pinion gear with a shoulder which limits movement of the shaft in the motor. A fan is on the motor armature which is secured by an adhesive which changes color during assembly. The motor also includes a demagnetization member which increases resistance to demagnetization due to elevated temperature, as well as armature reaction field.

摘要翻译： 电动工具具有电动机，其端盖通过冷成型固定到电动机上。 端盖包括通过端盖的变形保持在端盖中的轴承。 电动机包括一个电枢轴，该电枢轴被固定以保持层压板以及轴上的保持器。 另外，具有肩部的小齿轮限制了电动机中轴的移动。 风扇位于电机电枢上，电机电枢由组装时颜色变化的粘合剂固定。 该电动机还包括一个退磁元件，该退磁元件增加了由于升温导致的退磁阻力以及电枢反应场。